Corrugated-paper-board box



C. S. KNAPP.

CORRUGATED PAPER BOARD 80X.

APPLICATION FILED JULY 29. I918.

1,328,524, 7 Patented Jan. 20, 1920.

62 1, 2 WNW 7 5 I 7 5 $711M 9 10 i/z C. S. KNAPP.

comma/n20 PAPER 50m) Box.

APPLICATION FILED JUL'Y29| I918. 1,328,524.

Patented Jan.20,1920.

2 SHEETSSHEET 2.

Jig 6.

ZZ LL X5] UNITED STATES PATENT OFFICE.

/ CLYDE S. KNAPP, OF CHICAGO, ILLINOIS, ASSIGNOR TO SEFTON MANUFACTURINGCORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

CORRUGATED-PAPER-BOARD BOX.

Specification of Letters Patent.

Patented Jan. 20, 1920.

Application filed July 29, 1918. Serial No. 247,102.

Board Boxes, of which the fo lowing is a specification.

My invention relates to boxes constructed of double-faced corrugatedpaper board or equivalent material, and has for its object theproduction of a box particularly well adapted for the shipment of smalllots of canned goods, such as canned fruit, vegetables or other foodordinarily put up in tin cans, and also adapted for the shipment ofother articles of similar cylindrical or other regular shape, such asbottles or pasteboard boxes which are circular or polygonal incross-section and which it maybe desired to package in small lots, suchas a half dozen or a dozen in a package. In carrying out my invention Ihave employed two blanks, both of which are rectangular in shape and cantherefore be cut economically, and have so proportioned and arranged thebox members that the box includes an oblong outer box of doublethickness at its bottom and top, separated by a transverse partitionwhich is braced against the members of the outer box and forms a supportfor the outer top and bottom members. With the foregoing objects andadvantages in view I have designed .and invented the box structuresillustrated in the accompanying drawings and hereinafter described, theessential element of my invention being more particularly pointed out inthe appended claims.

Of the drawings, Figure 1 is a plan view of the larger blank used inconstructing a preferred form of my invention, lines of out completelysevering the material being indicated by full lines and folding linesbeing shown by dotted lines; Fig. 2 is a similar view of the smallerblank; Fig.3 is a perspective of a box filled with cans and partiallyclosed, parts being broken away to better show the arrangement andrelationship of the parts; Fig. 4 is a longitudinal section of the box;Figs. 5, 6, 7 and 8 are views of a modified form of box, said figurescorresponding respectively to Figs. 1, 2, 3 and 4-; Fig. 9 is alongitudinal vertical section of a slight modification of proportions oftheform of box shown in Figs. 1 to 4,

inclusive; and Fig. a similar section of a modification of proportionsof the box shown in Figs. 5 to 8 inclusive.

The same reference characters indicate the same parts in all the figuresof the drawing.

The box which is shown in Figs. 1 to 4, inclusive, is designed for thereception of a half dozen cans, arranged in two rows of three cans each,and the end portions 1, 1'- of the rectangular box blank (see F ig. 1)are therefore two-thirds as long as the side portions 2, 2, the lengthof the ends being twice the diameter of the cans intended to be packedin the box, and the sides being three times such diameter. the portions1 and 2 is equal to the height of the cans. The bottom closure comprisesouter portions or flaps 33, each one half as wide as the ends 11, or onediameter of the cans, and inner portions or flaps l4 of the same width.The but edges of the end 1-" and side 2 are united by a cloth pastingstrip 5, or equivalent means, and the inner bottom portions 4;4 foldedinwardly toward each other, after which the outer bottom portions 38 arefolded upon and. glued to the portion l land their meeting edges furthersecured together by a pasting strip 6. Preferably a pasting strip (3 isalso applied at each end of the folded box to unite the side edges ofthe outer bottom flaps 33 and the ends 1, 1 of the box and affordadditional strength as well as afford a neat finish.

Hinged to the sides 2, 2 are the outer cover flaps 77 of the same sizeas the outer bottom portions 38, and hinged to the sides 1, 1 are theinner cover flaps 88 of the same size as the innerbottom portions ll,the flaps 77 and 88 constituting the top closure of the box.

It is evident that the inner bottom portions or flaps la l and the innercover flaps 88 being each of a width equal to the diameter of a can.there will be left between each pair a space or gap also equal to onediameter which is filled by the top and bottom members of the partitionstructure which will next be described. This partition structure isformed of a blank (see Fig. 2) .which is transversely scored to providea horizontal bottom portion 9 of a width equal to one diameter of thecans. and which will therefore fit exactly into the gap between theinner portions -ll of the folded outer The width of t3 Ii box: avertical partition wall it) as wide as the sides and end of the boxproper. that is. the height of the cans; a horizontal top porlion 11 ot'the same size as the bottom 9 and which will therefore tit between thetop cover flaps 8-$z and meeting vertical flaps 12-12 connected one tothe bottom portion 5) and one to the top portion 11 which are togetherequal in width to the vertical partition and constitute a secondvertical partition wall. llowerer. this exact arrangement of the partsof the desirable. is not a neeessam one. since the important requisitesto the formation of an ett'ective partition are merely that it Shallinclude top and bottom portions arranged to till the spaces between thepor ions 4l and 8% of the box proper and an intermediate verticalportion extending between the closures of the box.

It will be understood that the bottom closure having been formed asdescribed. the partition structure is inserted as shown in Fig. 3 andthe articles to be packed in the receptacle are inserted. The innercover tlaps are now folded down into the same plane as the top portionof the partition structure and the outer cover flaps then glued downupon such inner cover tlaps and top partition member. The partitionblank in the folded and closed package will form a transverserectangular tube having its bottom fitting snugly between and in thesame plane as the inner portions 4'-l ot the outer box and its topiitting in the same manner between the inner top cover flaps of theouter box. the vertical partition wall 10 and the wall formed of theabutting flaps 12-42 extending between the bottom and top cover portions3-3 and 7-7 of the outer box and affording them very substantialsupport. The partition. thus restrained from lateral movement, preventsthe entire weight of the contents of the box from being thrown whollyagainst either end, while the top and bottom closures are strengthenedagainst crushing stresses.

The box illustrated in Figs. 5 to 8 inelusive is adapted to hold a dozencans or other articles, one-half on each side of the central partition.the entire lotbeing ar ranged in four transverse rows of three canseach. It follows from this arrange ment that the top and bottom portionsof the box blank (the parts of which are nnnr bered the same and areidentical in arrange ment and vary only in proportions as com pared withcorresi'ionding parts of the form of box first described) are each of awidth equal to one and one-half times the. diameter of the cans, leavinga central space be tween inner bottom flaps 44 andv inner cover flaps8'9 equal to one diameter and extending from the middle of the second tothe middle of the third row of cans.

partition blank, although.

mg an intermediate gap, and

The partition wall used in the modified form of my invention is formedby the central portion 13-l3 of two identical partition blanks. theportions 13 being each hinged at top and bottom to a top flap 1i and abottom flap 15. These portions 14. andlfi are each of a width equal toone-half the diameter of can, so that when arranged in the assembled boxas shown they'will completely fill the space between the inner bottomportions and top cover portions of the box proper. The bottom flaps 15are preterably glued to the outer bottom flaps 3-2) of the box, thoughthis is not absolutely necessary.

It is obvious that variations in the proportions of the box embers maybe made in adapting my in. i on to diti'erent requirements. Forinstance. it the package is designed to contain ten cans arranged in tworows of five! each. the end tlaps will extend over the end cans at eachend and the partition member will be constructed to inclosc the six cansintermediate the end cans as shown in Fig. 9. It it be desired to packfifteen cans in a package, the box shown in Figs. 5 to 8 may be modifiedby lengthening it, and lengthening the top and bottom flaps of one ofthe partition members to extend over one and one-halt diameters of thecans, the partition wall in this case being arranged a little to oneside of the center and the compartment on one side containing six cansand on the other nine, as illustrated in Fig. 10. My claims. therefore.are not to be limited to the exact. arrangement and construction shownin the forms of my invention hereinbefore particularly described.

I claim:

1. A rectangular box of the character described and comprising a boxproper provided at top and bottom on two opposite sides with meetingouter closure flaps and on the other two sides with inner closure flapsextending toward each other and leava partition structure comprising avertical wall provided with connected top and bottom members arranged tofill the gap between said inner closure flaps.

2. A rectangular box of the character described and comprising a boxproper provided at top and bottom on two opposite sides with meetingouter closure flaps and on the other two sides with inner closure flapsextending toward each other and leaving an intermediate gap, and apartition structure comprising a bottom portion arranged to fill the gapbetween the inner hottom closure flaps of the box proper and a connectedvertical wall and a connected top portion arranged to fill the gapbetween the top closure of the box, said bottom and top portions beingprovided with meeting 13( name 7 B flaps arran ed to together constitutea second vertica partition wall.

3. An oblong box of the character described and comprising a box properhav- 5 ing connected sides and ends provided at top and bottom on itstwo sides with meeting outer closure flaps and on its two ends withinner closure flaps of the same width extending toward each other andleaving an intermediate gap, and a partition struc- 10 ture comprisinga" vertical wall and a connected horizontal portion arranged to fill thegap between said inner closure flaps. CLYDE S. KNAPP.

